Full-Bridge Topology for IPT System On-Board Charger

This paper presents the behaviour of a full-bridge topology for an IPT system, considering misalignment impacts, and the design of a full-bridge isolated converter for an EV on-board charger fed by this IPT system. The double galvanic isolation is required since this on-board charger is expected to work also directly from the mains. The paper presents a brief description of the proposed IPT system and magnetic core structure, the strategy for the converter operation and the design of the isolating transformer. It also analyses the impact of misalignments of the IPT system on the on-board charger behaviour and control in terms of charging capability. A simulation analysis is included to verify some of the appointed considerations.